Best of AOP - Galaxies

NGC 5204

This barely spiral galaxy is located about 15 million lightyears away in the constellation Ursa Major. It is an extremely bright X-ray source, which would normally indicate to astronomers that there is a supermassive black hole in the center of the galaxy. However, the X-ray source is slightly offset from the galactic center, which makes the supermassive black hole theory unlikely. At the same time, it is much too luminous in the X-ray region to be the result of a small, stellar-mass black hole. Astronomers are currently studying this galaxy to determine the true cause of this X-ray brightness.

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Last Updated: 09-Apr-2014

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About This Image

Click on image for larger version.

Equipment

20in RC Optical Systems telescope Operating at f/8.1

Paramount ME Robotic Telescope Mount

SBIG ST10XME CCD camera with color filter wheel

LRGB color production was used to create this image.

Taken during poor seeing.

Three iterations of L-R deconvolution (sharpening) algorithm using CCDsharp were applied to the luminance image.

Digital Development (DDP) via Maxim/DL was also used in order to display the very dim and very bright details of

the image simultaneously.

Luminance = 90 minutes binned 1x1

Red = 20 minutes binned 2x2

Green = 20 minutes binned 2x2

Blue = 20 minutes binned 2x2

Minimum credit line: Doug Matthews/Adam Block/NOAO/AURA/NSF